web app – Why is the quality in Software tools deteriorating overtime?

— Not sure if this should go on here but am desperate —

I’m a final year Software Engineering student, for my dissertation, I am looking at what has caused the deterioration of usability in Project Management software. As part of this, I am developing a Project Management web app focussing on the key concepts identified from research to benefit their work.

Software Maintainability is a clear contributor from Academic and Literature sources, but I am trying to get more industry perspective.

I have a survey monkey link for an official survey, but any feedback/information/examples are incredibly appreciated https://www.surveymonkey.co.uk/r/X3NYD76

I am looking for any opinions really, not inherently Project Manager opinions